About the IC3600LRDH1A1C
The IC3600LRDH1A1C is a Relay Driver board for the Mark I and the Mark II series. These were the first two steam/gas turbine management systems released by GE and have been in use now for several decades. Both series have a long history of use in a variety of environments around the globe, in temperatures ranging from -50C to +50C. Designed for scalability and adaptability, both series can be fitted to serve the needs of the turbine system regardless of size and complexity, which means the MKI and MKII is as useful in the management of a single 4000 hp unit as it is in running a power station with a rating up to 400 Mw (combined cycle.)
The IC3600LRDH1A1C is marked with several bits of information on its surface. This includes the board’s unique ID number, the codes 002/03, 003/04, and 006/06, the code 68A999536, and the word “STAR,” which is marked in one corner. The board also carries the GE ‘USA’ logo. It has been numbered on one edge.
The IC3600LRDH1A1C has eighteen transistors on its surface of varying design. Several transistors have the same designating mark. This means more than one component may be marked as “Q1” or “Q2.” The board has metal film resistors and fixed vacuum capacitors. Diodes are located in several places on the board, but may not carry an identifying prefix.
Fifty-one right-angled metal pins are located on one edge of the IC3600LRDH1A1C. These pins function as a backplane and allow communication to occur between the board and the rest of the Speedtronic system. Technical support for this board was provided by GE, including end-user publications like data sheets and manuals.
